253998031 has 8 divisors (see below), whose sum is σ = 290908800. Its totient is φ = 217243608.

The previous prime is 253998029. The next prime is 253998047. The reversal of 253998031 is 130899352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 253998031 - 2¹ = 253998029 is a prime.

It is a super-2 number, since 2×253998031² = 129029999503753922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253998001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35581 + ... + 42118.

It is an arithmetic number, because the mean of its divisors is an integer number (36363600).

Almost surely, 2^253998031 is an apocalyptic number.

253998031 is a deficient number, since it is larger than the sum of its proper divisors (36910769).

253998031 is an equidigital number, since it uses as much as digits as its factorization.

253998031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78173.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 253998031 is about 15937.3156773655. The cubic root of 253998031 is about 633.3009166849.

The spelling of 253998031 in words is "two hundred fifty-three million, nine hundred ninety-eight thousand, thirty-one".